Title :
Measuring the resiliency of cellular base station deployments
Author :
Griffith, David ; Rouil, Richard ; Izquierdo, Antonio ; Golmie, Nada
Author_Institution :
Nat. Inst. of Stand. & Technol. (NIST), Gaithersburg, MD, USA
Abstract :
The National Public Safety Telecommunications Council (NPSTC) has defined resiliency as the ability of a network to withstand the loss of assets and to recover quickly from such losses. How to measure the resiliency of a base station deployment is an important consideration for network planners and operators. In this paper, we propose a resiliency measurement method in conjunction with a performance metric such as coverage or supported throughput, where we define the resiliency as the maximum number of sites that can fail before the metric falls below a minimum acceptable threshold. Because the number of combinations of failures increases exponentially with respect to the number of sites in a given deployment, we introduce an algorithm that generates estimates of the lowest, highest, and average values of the metric for a given failure count while examining a subset of the possible failure combinations. We use an example deployment to demonstrate how the resiliency metric can be used to identify sites that have a disproportionate impact on performance; the network planner can harden these sites or, for a future deployment, adjust the site placement to reduce the effect of the high-impact sites.
Keywords :
cellular radio; telecommunication network planning; telecommunication network reliability; NPSTC; National Public Safety Telecommunications Council; asset loss; cellular base station deployment resiliency; failure combination; failure count; high-impact site effect reduction; minimum acceptable threshold; network planners; resiliency measurement method; site placement; Algorithm design and analysis; Base stations; Conferences; Measurement; Mobile communication; Mobile computing; Safety;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2015 IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/WCNC.2015.7127711